This was great fun! Loved the artwork.
The goal was a bit unclear, at first. I thought we had to give at least the target number. I then realised we had to give exactly the target number. But (I think) the average of the included ingredients will be rounded down to the nearest integer, too? But I'm sure all that is easily cleared up if you choose to spend more time on it.
I would also consider removing the satisfaction penalty when the player clicks TRASH. The randomness means that bad combinations are going to be inevitable. (The monster wants five, and I've rolled a one and a two, for example.) Challenging players to recognise those combinations and trash 'em quickly is fine, in my opinion - but we're already being penalised enough by the wasted time.
The penalty for trashing (even though I had no control over when I would need to trash) made the strategy of 'keep retrying and wait to get lucky' a lot more effective for me than 'actually engage with the mechanics'.
Awesome fun, though. Thank you!